[Milsurplus] Re: +AFs-Milsurplus+AF0- what +ACI-ARC-5+ACI- stuff is

[Neil Barnett]

> One caveat: the ARC-5, although similar to the SCR-274N, is not identical 
> to it, and the system components are not interchangeable, due to some 
> differences in > pinouts of connectors, and some differences in other 
> components, like   modulators, control boxes, etc.

ARC-5 feeds B+ to the 1625 plates in a shunt arrangement
via an RF choke.  SCR-274N feeds B+ through the 1625
output tank coil itself.
In operation, there is probably no appreciable difference in
performance.  Anyone know the reason for the change?

73 de Neil ZL1ANM